705 - Transfer of Heat

Heat can be transferred in three ways, there are :

• Conduction

• Convection

• Radiation

• Reflection

(a)   is the transfer of energy from one molecule to another by direct contact.

(a)   is the movement of heat by a fluid such as water or air.

(a)   is the transfer of heat by electromagnetic waves, which does not require any medium to help with the transfer process.

Thermal conductivity of different metals is different.

• True

• False

The higher the temperature, the higher will be the radiation.

• True

• False

Convection currents always rise upwards and not sideways.

• True

• False

Which matters transfer heat by conduction are fastest ? Solids, liquids, or gases ?

• Solids

• Liquids

• Gases

Pick the good conductor(s) :

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Pick the good insulator(s):

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